Dust-separator.



A. S. EMERSON.

DUST SEPARATOR.

APPLICATION FILED DBO.50,1907.

905,999. Patented Dec. 8, 1908;

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PATENT OFFICE.

ALFRED s. EMERSON, or LONDON, ENGLAND.

No. oomeee.

To all whom it may concern:

citizen of the United States,resid ing'in London, England, have invented certain new and useful improvements in Dust-Separators, of

which the following is a specification.

This invention relates to dust separators and has for its object to provide improved means for sephrating dust from air, and. is particularly adapted for use in conjunction with pnelnnatic cleaning apparatus.

\ Considerable difiiculty has been ekperien'cod in the use of dust separaitors by the overloading and consequent breaking of the separating sieve, generally a cloth. Another diln'culty has been that as the cloth gradually accumulated amass of dust which it separated from the air passing through it that the passage of the air would be impeded so that the'apparatus would not always work with the sanie constancy of eflieiency. The necessity. of frequently openting the dust box and having to-take the cloth and shake the dust out by hand made the use of the apparatus not onlyunpleasant to the operator but also unhealthful, and not only this but the instrumentality employed for removing dust by this means be came a medium through which dust was disseminated in .the vicinity in which the seporator was installed. Another disad yantege of the apparatus wherein the sieve removal of the dust was that the cleaning operations had to be discontinued during the time the attendant was removing the dust from the sieve or separator cloth. j

in the drawings accompanying and form .ing s. part of this specification Figure 1 represents apracticalolc embodiment of a form of my invention; certain parts herein are shown in central vertical section, other parts are broken away, sud other parts are shown in elevation; and Fig. 2 is a cross section of the primary separating device and is taken on a plane in about the line 2-2 of Fig". 1.

in the form oithe device ill ustrated :1 casing is sholvn embodying two compartments 5 and 6, and Within thesr compartments respectively there is a cylindrical rotarydust separator, designated by the reference charaeters 7 and 8 respectively. These separating cylinders are mounted on journals 9 and 10 supported by the walls of the casing and by a journal 11 supported by the partition 1'2 which divides the two chambers or com- Specification of Letters Patent. Application filed December as, 1907. Serial No. 408,521.

' I partuients '5 and-6. Be it known that I, ALFRED 5. Emerson, a

nod so be removed for the purpose of the- DUST-SEPABATOR. l

Patented Dec. 8, 1908.

A pulley 13 is fast to the journal 9 for the purpose of rotating both oi the cylinders. In the present instance the, cylinders are substantially the some in construction having solid heads 14 connected by longitudinally disposed ribs 15. 'll1ese ribs are widely spaced apart and between each two adjacent ribs a sieve 16 is provided. a rubric of proper weave. placed over. the

outside of the ribs, which fabric will in some i instances be wire cloth having proper mesh to interrupt the passage of the dust with the air. l

The dust laden air enters the chamberlfi from the cleaner head by means of a suitable hose. connected at the connect-ion 17. This will bring such dust laden air outside of the cylinder 7 and the air will through the fabric or sicve 16 to the inside of such cylinder. The major portion of the entrained dust being deposited on the outside of the sieve. W'ithin the cylinder are weights for jarring the dust off of the sieve, in the present instance, there is shown a number of balls, designated without preference. by 18, which are loose within the cylii der 7, and as this revolves will rest in the pockets 19 forinedby the upwardly moving edge of the ribs and the fabric, and as the cylinder continues to rotate the balls will drop and strike the fabric and thus knock off the dust as fast as it accumulates upon the outside of the same, thus not only keep; ing the separating medium free from dust so that it will always present an unobstructed surface, but it will remove certain particles of dust which lodge upon this tabric, and which if permitted to remain would, bycontinuation of the pressure of the air passin through be carried along with the ailgbuh by being removed shortly after lodgin upon the outer surface of the cylinder, this danger of the air'again taking up the deposited particles of dust and carrying it forward is largely obviated.

In Fi 2 it will be seen that the ball a is just about ready to drop and it may be assumed that it will follow the line b and drop into the pocket 19 at 0 and the ball-may then bounce from the point 0 and fall into the pocket 19 atpoint d, thus one ball in dropping will no doubt strike the sieve at moiethan ne place and produce a sh-eking of the fabric and efliciently remove the dust. This of course is a mere suggestion as to the way the balls In the present illustration this is will act, many things may modify the action in each specific instance.

The air having had much of the dust removed from it before it gets to the inside of the hollow cylinder 7 will pass from said cylinder through the journal 11, which is hollow, and is perforated, the perforations being designated without preference by 20. The air passes out. of such perforations and enters the chamber 6 and will pass through the fabric 16 upon the cylinder 8 and pass through such fabric into the inside of such cylinder and pass out by the journal 10, which is hollow. The journal lOwill of course be connected with the pumping or other suction apparatus. For the purpose of removing the dust from the outside of the cylinder 8, and for keeping the fabric moist to assist it in its dust removing function, a. body of Water, designated in a general way by 21, is provided in the lower part of the chamber 6. A suitable'sight 22 is shown for the purpose of permitting the attendant to see that the water is just suf-" ficiently high to engage the lower portion of the cylinder. A supply of water may be admitted from time to time as occasion may demand through the water inlet 23, controlled by the float 27, and the muddy water may be permitted to escape through the cock 24, which will, in many instances, be

connected to the sewer. The chamber 5 may also have a water connection 25 and a sewer connection 26 so that when it is desired to remove the dust which has collected within the chamber 5 water may be admitted and the sewer connection opened and the dust thus flushed out without the necessity of opening. the chamber or permitting any of the contents thereof to escape in the form of dust. v

Having described my invention I claim:

liln a dust separator, the combination with, a rotary cylinder embodying a seriesof widely spaced apart longitudinal ribs extending inwardly into said cylinder for carrying weights free within said cylinder upwardly the cylinder rotates-and permitting the weights to fall upon being so carried up, sieves extending between adjacent ribs, free weights within said cylinder and constructed adapted for being carricd up by said ribs and falling from the same and upon the sieves, and means for drawing air into said cylinder through the sieves.

2. In a. dust separator, the combination with a'pair of contiguous chambers, of a by, means of communication between the in side of one of said rotary bodies and the adjacent chamber and with the outside of the rotary body therein, an inlet for dust laden air communicating to the outside of the first of said rotary bodies, and an outlet for connection ,with a suction device communicating with the inside of the other of said bodies, thevlatter of said chambers being adapted for containing a body of water having its normal surface level above a portion of said rotary body.

3. In a dust separator, the combination with a pair of chambers, a rotary body within each-of said chambers and comprising fabric, andmcans for keeping this extended, means for conveying dust laden air to the outside of one of said bodies, means for conveying the air from the inside there.

of .to the outside of the other of said bodies, and means for exhausting the air from the inside of said latter body, means within one of said bodies for engaging the fabric thereon for jarring off the dust that accumulates, and .means for engagin the outer side of the fabric upon t e other of said bodies for removing the dust which accumulates thereon.

4. In a dust separator, the combination with a rotary body embodying a series of longitudinal inwardly extending ribs for carrying free balls within the cylinder upwardly as the body rotates and for permitting the balls to fall from the ribs upon be ing carried up, fabric on the outside of and extending between adjacent ribs, said fabric being in such a position in relation to the ribs that thc portion thereof which is between adjacent ribs which are passing through a position at the lower portiouof thepath of movement of said ribs and fabric (hiring the rotation of the body will be struck by. balls fallingfrom ribs ascending from the lower position, balls free within said body, and means for drawing air into said body through the fabric. I

Signed at Nos. 9-15 Murray street, New York, N. Y. this fourteenth day of December, 1907.

ALFRED S. EMERSON. W'itnesses: CHAS. LYON RUssnLL,

HENRY E. GREENWOOD. 

